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A.N.P.S.A. Fern Study Group Newsletter Number 144

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A.N.P.S.A. Fern Study Group Newsletter Number 144 A.N.P.S.A. Fern Study Group Newsletter Number 144 ISSN 1837-008X DATE: February, 2020 LEADER: Peter Bostock, 54/260 Cliveden Avenue, CORINDA, Qld 4075. Tel. 07 3096 1054, mobile: 0421 113 955; email: [email protected] TREASURER: Dan Johnston, 9 Ryhope St, BUDERIM, Qld 4556. Tel. 07 5445 6069, mobile: 0429 065 894; email: [email protected] (note change of email address) NEWSLETTER EDITOR: Peter Bostock, contact as above. From the Leader Although I have briefly listed the excursions and meetings for both Queensland and New South Wales below, please be aware that all social events of the Fern Study Group have been cancelled for the foreseeable future, in line with Federal and State Government regulations and advice from both Native Plants Queensland (received from the NPQ President, Bob Bannon, on 21st March) and Australian Plants Society NSW. In addition, due to the uncertainty of both the social situation over the next few months, and the possible recession of the Study Group (see below), I’ve decided that we will postpone collection of fees that would normally be due June 30, 2020. We will give all members a free year. “Paid-to” dates will be pushed back one year. If necessary, arrangements will be made to refund fees paid in advance. I recently also (and independently of COVID-19) made the decision to resign as leader from the Fern Study Group, effective 30 June 2020. I discussed this at the February meeting in Brisbane, and made my intentions known to Peter Hind a little while ago. I hope that the Study Group will continue, and I will remain as a member as long as I can, providing technical advice if requested and images of ferns if desired. Whether the Study Group is placed into recess, folds up or continues with a new leader (or leaders) is in your hands. Please contact me or Jane Fountain (Study Groups Coordinator, email [email protected]) for more information or to offer your services. Vale Kerry Rathie. A long time member of the Study Group, Kerry passed away 18th March 2020 after a short illness. Kerry brought a very learned scientific rigour to his cultivation of ferns, and was always on the lookout for plants to grow in his open garden beds and greenhouses. He hosted a number of Study Group visits over the years and these were always entertaining and informative. We will miss him. Our condolences to his wife, Annabel, and family. Program for South-east Queensland Region (Postponed) Peter Bostock Sunday 5th April 2020. Meeting at Claire Shackel’s residence, Upper Mt Gravatt, from 9:30 am. Sunday 3rd May 2020. Eprapah Creek near Victoria Point, from 9:30 am Sunday 7th June 2020. Maroochy Regional Bushland Botanic Gardens, Tanawha, from 9:30 am. Program for the Sydney Region (Postponed) Peter Hind Saturday 18th April 2020. The Olde`s country residence, Oakdale, at 11 am. Saturday 23rd May 2020. Note change of date! Steve Lamont’s residence, Castle Cove. Steve’s mobile: 0409 955 224. Saturday 20th June 2020. Walk from Evans Lookout to Neate`s Glen via the Grand Canyon. Contact Peter Hind on 02 9625 8705 for further information. 1 Saturday 18th July 2020. Home of Gayle and George Hardy, Davidson, at 11 am. Contact information: 02 9453 9940. Saturday 15th August 2020. Mt Tomah Botanic Garden, meeting initially at the Visitor Centre, 10:30 am for 11 am. Saturday 19th September 2020. Meet from 11 am at the home of Natalie & John at 4 Laurel Street, Willoughby. Study of epiphytic & lithophytic ferns. Enquiries to Natalie & John on 02 9958 8766. Saturday 17th October 2020. Meet from about 12 noon at the home of Kylie & Dwayne Stocks at Verdigris Nursery. Excursion and General Reports Fern Floras of Australia and New Zealand Peter Bostock Long out of print, the fern volume of Flora of Australia is now available from the Australian Government as a pdf (Acrobat) formatted ebook. Just type “Flora of Australia 48” into your favourite search engine and you should find the desired file pretty quickly. If you are into New Zealand ferns, the New Zealand botanical community has produced a series of digital files, with one or more fern families per file. These are available from this link: https://catalogue.data.govt.nz/dataset?tags=Ferns ADD in ferns Ron Wilkins I’ll bet you all have a patch of Nephrolepis sp., Calochlaena dubia, or a Platycerium bifurcatum nestled on a tree, and know that they are effectively drought-proof. Most other ferns in my garden are afflicted with ADD (attention deficit disorder) to varying degree. The latter ferns demand attention - or eventually die. I’d like to give honourable mention to two very independent ferns I’ve come to appreciate more in hot and dry times in Sydney. My Pellaea falcata was collected (probably illegally) from a colony growing on the roadside in a housing area at Mount Tomah, NSW. I can’t remember the street but I do remember the terrifying fierce dogs that threatened my life as I gently plucked a frond. It took to my garden immediately and spread into a patch eliminating all other ferns in its way. As you know, this is a handsome fern with dark green and shiny laminae. A nice patch of the plants is a pleasing sight. When a frond dies, however, the wiry rachis that persists on the rhizome is studded with tough, woody, 1 mm basal pinnae remnants that can rip the skin. Usually, I don’t wear garden gloves and I will not tolerate for long any vegetation with spines or spikes. So, after having my hand ripped on one occasion (OK, I should have used a clipper) I decided the patch had to go. The rhizome is branched, black and wiry, deep in the soil, and I thought I had extracted the whole tangled mass. But six months later after a heavy shower it was back again and so beautiful I did not have the heart to renew my attack. I also have a couple of small patches of P. paradoxa, equally resistant to drought. This species has 3 mm basal pinnae remnants, even crueller to the fingers. Calder Chaffey (in Australian Ferns) remarks that P. falcata behaves somewhat like a Resurrection Fern, but although in dry times the pinnae tips pale and curl, and recover after rain if they have not browned, this is nowhere near as spectacular as the true resurrection ferns like Cheilanthes. The second fern to which I doff my battered gardening hat is Rumohra adiantiformis. In my garden this fern is irrepressible. Like Pellaea falcata, I’ve never watered it; it survives on whatever natural rainfall it receives, and looks green, leafy and fabulous even in drought. It is aggressive to those weaker ferns suffering from ADD. My patches started from a hanging basket specimen I bought at Gloucester, NSW, not far from Barrington Tops, and I thought there was a chance it was a native plant. However, it is clearly the variety used in florists for background ‘green’. I have seen the identical fern in the front gardens of many Californian residences so it gets around. I’ve been interested in the Australian variety of this fern which is usually epiphytic or lithophytic, and outside of Tasmania, not so common, in my experience. I once thought I could distinguish the varieties by features of their vascular systems, but I have lost confidence it is possible to do this. Nevertheless, our native, and this foreign fern from wherever it came, are different by reason of their differing vigour, which seems to be a genetic trait. But vigour is not a physical characteristic observable in a museum specimen. Neither is ADD. I’m getting into hot water here. I had better retreat before I create argument from those who know a lot more about ferns than I do! 2 Pyrrosia rupestris ‘Sampsons Crest’ Tony Clarke Brad Sampson, a friend who is in my local ANOS group came to visit me one afternoon to look at some of my native orchids. Brad noticed that I had a large collection of Pyrrosias and asked me what they were. I am proud of the forms of Pyrrosia that I have found over the years and was surprised when he said that he knew of a large clump of a plant that looked like these Pyrrosias that were in a remnant piece of coastal rainforest about 10 minutes drive from my house. I was puzzled at his statement as I had walked near this area many times before and never seen any Pyrrosias there, in fact it is my experience that I have rarely (if at all) seen Pyrrosia rupestris near the sea but usually found at altitude. Brad said that he would send me a photo that evening of this plant. All afternoon I kept thinking what he had confused it with. Perhaps he had seen some sort of creeper, ah I know – he has seen a plant of Hibbertia scandens sprawling over a rock! After dinner that day I turned the computer on and nearly fell over when I saw the photo, this large crested Pyrrosia growing on a large boulder. I immediately phoned Brad and asked him to take me there next day. This fern is growing about 400 metres from the beach in an open area that has dappled shade mainly from large Eucalypts and could be vulnerable to brushfires. Tallanbana, Springbrook, Sunday 3rd November 2019 Jeff Lynne It was a bit nippy the morning a group of 13 or so fernies assembled at the Tallanbana picnic area in the glorious Springbrook National Park.
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